Abstract:
Provided are an apparatus for removing phosphorous from wastewater including: a first coagulation sedimentation unit including a first rapid mixing tank, a first flocculation tank and a first sedimentation tank; and a second coagulation sedimentation unit including a second rapid mixing tank, a second flocculation tank and a second sedimentation tank, and a method for removing phosphorous using the same. The first rapid mixing tank stirs wastewater and an inorganic coagulant with low basicity at high speed and the second rapid mixing tank stirs the treated water supplied from the first sedimentation tank and an inorganic coagulant with high basicity at high speed. As a result, removal of phosphorous from the wastewater is maximized and coagulation and sedimentation may be optimized through control of metal content in the inorganic coagulants added to the first rapid mixing tank and the second rapid mixing tank.
Abstract:
Disclosed herein are a tube for arteriovenous anastomosis useful in hemodialysis patients and an insert for use in medicinal operation in the body. The tube or the insert are repetitively treated with a medicament on the surface thereof, which provides stable communication between an artery and a vein of a patient under hemodialysis and can greatly reduce stenosis at arteriovenous connections by releasing the medicament at a suitable rate over a prolonged period of time.
Abstract:
A method of preparing a green-ceramic pigment for reduction firing using copper oxide that includes mixing tin oxide (SnO2) and copper oxide (CuO); providing a fired product by applying oxidation firing to the mixture at a firing temperature of 1000 to 1300° C.; and grinding the fired product. Aspects also provide a green-ceramic pigment prepared by this method, as well as a method of manufacturing a green ceramic.
Abstract:
The present disclosure provides apparatus and method for phosphorous removal using dolomite by mixing an inorganic coagulant and dolomite together to improve the phosphorous removal efficiency and controlling pH, which has been lowered due to the use of the inorganic coagulant, close to the neutral by means of dolomite to improve the economic feasibility and minimize an additional neutralizing process.
Abstract:
A method of preparing a green-ceramic pigment for reduction firing using copper oxide that includes mixing tin oxide (SnO2) and copper oxide (CuO); providing a fired product by applying oxidation firing to the mixture at a firing temperature of 1000 to 1300° C.; and grinding the fired product. Aspects also provide a green-ceramic pigment prepared by this method, as well as a method of manufacturing a green ceramic.
Abstract:
Disclosed herein is a hemodialysis tube treated with a medicament on the surface thereof, which provides stable communication between the artery and the vein of the patient under hemodialysis and can greatly reduce stenosis at arteriovenous connections. As a base material of the hemodialysis tube, expanded polytetrafluoroethylene is used while the medicament is paclitaxel or rapamycin.